If I have an older iMac that has DVI, is there any way to use it as a second display?
I would like to connet my 2015 MacBook to a 2008 iMac with a DVI port. Is there any way to do this? I have cabling from Thunderbolt to DVI, but nothing seems to get recognized and the Command-F2 does nothing.
iMac, Mac OS X (10.6.8), MacBook is El Capitan
